Electric toothbrush



FIG. 1 is perspective front view of an electric toothbrush;

FIG. 2 is a front view of thereof;

FIG. 3 is a rear view of thereof;

FIG. 4 is a right view of thereof;

FIG. 5 is a left view of thereof;

FIG. 6 is a top view of thereof; and,

FIG. 7 is a bottom view of thereof.

The broken lines in the drawings are for the purpose of illustrating portions of the electric toothbrush that form no part of the claimed design. 

CLAIM The ornamental design for an electric toothbrush, as shown and described. 